Can someone please tell how to create multidimensi...

# announcements

[Ashutosh Panda]

Can someone please tell how to create multidimensional array with some exampes

[bezrukov]

Array(5) { Array(10) { Array(15) { 10 } } }
creates array 5x10x15 with initial value 10

[Ashutosh Panda]

how do you print the value

[diesieben07]

println(array.contentToString())

[Ashutosh Panda]

the first element

[bezrukov]

println(array[0][0][0])

[Ashutosh Panda]

Would mind to give a example of 2D array i

[Ashutosh Panda]

3D is something bit complicated

[bezrukov]

2d:
val array = Array(5) { Array(10) { 10 } }
println(array[0][0])

[Ashutosh Panda]

I think we write

arrayOf<type>()

[bezrukov]

it's 1d

[bezrukov]

you can write something like:
arrayOf(arrayOf(1,2), arrayOf(3,4))
it will be 2d:
1,2
3,4

[Ashutosh Panda]

if I write

val array=Array(5){array(10)}

will this mean array is empty

[bezrukov]

what's array(10) here?
If you wanted arrayOf(10), 10 - content, not size

[Ashutosh Panda]

val array = Array(5) { Array(10) { 10 } }

I just didn't write

{10}

[bezrukov]

It won't compile I believe

[Ashutosh Panda]

Ok

[Ashutosh Panda]

Thanks

[diesieben07]

That creates an array of size 5 where each element is another array of size 10. Each element in those 2nd-level arrays is also 10.
So:

[
  [10, 10, 10, ...], // 10 times
  [10, 10, 10, ...],
  ... // 5 times
]

[Ashutosh Panda]

So you mean each slot in array has value 10

[diesieben07]

The "inner" arrays, yes.

[diesieben07]

There are no two-dimensional arrays. Only arrays which contain arrays themselves (there is a difference!)

[Ashutosh Panda]

So how do I assign a different values

[Ashutosh Panda]

through nested loops?

[diesieben07]

You can use arrayOf(1, 2, 3) (creates [1, 2, 3]). Or you can use loops, or you can do something like:
val array = Array(3) { idx -> idx * 2 }, which generates [0, 3, 6]